Deformation behavior of cadmium telluride stressed at elevated temperatures

• Published in: Journal of materials engineering and performance Vol. 7; no. 4; pp. 555 - 563
• Main Authors: SHEN, J, BALASUBRAMANIAN, R, AIDUN, D. K, REGEL, L. L, WILCOX, W. R
• Format: Journal Article
• Language: English
• Published: New York, NY Springer 01-08-1998; Springer Nature B.V
• Subjects: Cadmium; Cadmium tellurides; Compressed; Condensed matter: structure, mechanical and thermal properties; Crystals; Deformation; Deformation and plasticity (including yield, ductility, and superplasticity); Exact sciences and technology; Mechanical and acoustical properties of condensed matter; Mechanical properties of solids; Physics; Plastic deformation; Slip bands; Stresses; Uniaxial compression; Inorganic compounds; Shear; Semiconductor materials; Strains; Cadmium tellurides; Transition element compounds; Twinning; Experimental study
• ISSN: 1059-9495; 1544-1024
• DOI: 10.1361/105994998770347710

Cadmium telluride crystals were uniaxially compressed along several crystallographic axes at temperatures from 773-1353K. The applied stress ranged from 14-74% of the critical resolved shear stress (CRSS) measured in the authors' laboratory. The deformed specimens were annealed without applying stress at temperatures from 573-1073K. No twins were observed after the above operations. Dense slip bands were observed on most of the compressed specimens. Secondary slip systems were activated in some experiments. Cadmium telluride crystals were sheared along {111} < 112 > at 1073K with a load of 40% CRSS. Slip bands, but no twins, were observed. Synchrotron x-ray topography was used to study in situ the effect of stress on crystal deformation. Cadmium telluride specimens were uniaxially stressed in tension along < 112 > at 293-673K. When the load reached 50% of the CRSS, the topograph began to distort, indicating the beginning of plastic deformation. No twins were observed on the stressed specimens.